.page-header {
  position: fixed;
  left: 0;
  width: 100vw;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--padding-page);
  z-index: 3;
}

.page-header {
  transition: transform 350ms ease, background-color 250ms ease;
}

.page-header > .region-header {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.page-header.header-hidden {
  transform: translateY(-100%);
}

.page-header.navigation-open {
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .page-header.header-ready > .region-header {
    animation: reboat-header-in 700ms cubic-bezier(0.22, 1, 0.36, 1) 100ms backwards;
  }

}

@keyframes reboat-header-in {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
}

.burger-button-line {
  transition: transform 300ms ease, background-color 180ms ease;
}

.burger-button:hover .burger-button-line:first-child,
.burger-button:hover .burger-button-line:last-child {
  transform: scaleX(0.7);
}

.burger-button:hover .burger-button-line:nth-child(2) {
  transform: scaleX(1.2);
}

body.toolbar-horizontal .page-header,
body.toolbar-vertical .page-header {
  top: 39px;
}

body.toolbar-tray-open.toolbar-tray-open .page-header {
  top: 79px;
}

.page-header.header-scrolled {
    background-color: var(--color-background-main);
}

.page-header.header-scrolled .burger-button {
    background-color: var(--color-white);
    border-color: var(--color-brand-blue);
}

.page-header.header-scrolled .burger-button-line {
    background-color: var(--color-brand-blue);
}

.page-header.header-scrolled .cta-button:not(:hover, :focus-visible), .page-header.header-scrolled .background-color-dropdown-button {
    color: var(--color-brand-blue);
    border-color: var(--color-brand-blue);
}

/* Invert the controls only over the light, solid header surface. */
.page-header.header-scrolled:not(.dark) .reboat-button--header-cta:is(:hover, :focus-visible),
.page-header.header-scrolled:not(.dark) .burger-button:is(:hover, :focus-visible) {
  color: var(--color-white);
  background-color: var(--color-brand-blue);
  border-color: var(--color-brand-blue);
}

.page-header.header-scrolled:not(.dark) .burger-button:is(:hover, :focus-visible) .burger-button-line {
  background-color: var(--color-white);
}

.page-header.header-scrolled.dark .burger-button {
    background-color: var(--color-white);
    transition: background-color 0.5s ease-in-out;
}

.page-header.header-scrolled.dark .burger-button-line {
    background-color: var(--color-brand-blue);
    transition: background-color 0.5s ease-in-out;
}

.page-header.header-scrolled.dark .cta-button:not(:hover, :focus-visible), .page-header.header-scrolled.dark .background-color-dropdown-button {
    color: var(--color-white);
    border-color: var(--color-white);
    transition: background-color 0.5s ease-in-out;
}

.navigation-bar {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.header-logo {
  width: clamp(160px, 12.55vw, 195px);
}

.page-header--photo {
  transition: transform 350ms ease;
}

.page-header--photo:not(.header-scrolled) {
  background: transparent;
}

.page-header--photo:not(.header-scrolled) .burger-button {
  background: transparent;
  border-color: var(--color-brand-blue);
}

.page-header--photo:not(.header-scrolled) .burger-button-line {
  background: var(--color-brand-blue);
}

.page-header--photo > .region-header:not(.header-photo-overlay) .reboat-button--header-cta:not(:hover, :focus-visible) {
  color: var(--color-brand-blue);
  border-color: var(--color-brand-blue);
}

.page-header > .region-header.header-photo-overlay {
  position: absolute;
  inset: 0;
  padding: inherit;
  pointer-events: none;
  filter: brightness(0) invert(1);
}

.page-header--photo .header-photo-overlay .burger-button {
  background: transparent;
}

.page-header--photo .header-photo-overlay .header-logo {
  content: url('../images/logo-dark.svg');
}

/* Reveal the interactive blue control beneath its white photo-mask copy. */
.page-header--photo:has(> .region-header:not(.header-photo-overlay) .reboat-button--header-cta:is(:hover, :focus-visible)) .header-photo-overlay .reboat-button--header-cta,
.page-header--photo:has(> .region-header:not(.header-photo-overlay) .burger-button:is(:hover, :focus-visible)) .header-photo-overlay .burger-button {
  visibility: hidden;
}

.page-header--photo:not(.header-scrolled) .reboat-button--header-cta:is(:hover, :focus-visible) {
  color: var(--color-brand-blue);
  background: var(--color-white);
}

.page-header--photo:not(.header-scrolled) .burger-button:is(:hover, :focus-visible) {
  background: var(--color-white);
}

.page-header--photo:not(.header-scrolled) .burger-button:is(:hover, :focus-visible) .burger-button-line {
  background: var(--color-brand-blue);
}

/* Avoid a white-logo flash before the header behavior attaches. */
.page-header--light .header-logo {
  filter: brightness(0) saturate(100%) invert(13%) sepia(94%) saturate(3102%) hue-rotate(228deg) brightness(88%) contrast(114%);
}

.burger-button {
  width: 60px;
  height: 60px;
  padding: 20px 17px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  background-color: var(--color-white);
  border: 1px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.burger-button-line {
  width: 100%;
  height: 2px;
  flex: 0 0 2px;
  border-radius: 999px;
  background-color: var(--color-brand-blue);
}

.background-color-dropdown {
  position: relative;
}

.background-color-dropdown-button {
  width: 60px;
  height: 60px;
  text-align: center;
  text-transform: capitalize;
  border-radius: 50%;
  color: var(--color-white);
  border: 1px solid var(--color-white);
  font-size: 14px;
  line-height: 14px;
}

.background-color-dropdown-list {
  flex-direction: column;
  gap: 20px;
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-background-main);
  padding: 20px;
}

.background-color-dropdown-list[hidden] {
  display: none;
}

.background-color-dropdown-list:not([hidden]) {
  display: flex;
}

.background-color-dropdown-list-item {
  text-transform: capitalize;
  font-size: 20px;
  line-height: 20px;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  gap: 5px;
  align-items: center;
}

.background-color-dropdown-list-item-color {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 0.5px solid var(--color-borders);
}

.color--white {
  background-color: var(--color-white);
}

.color--black {
  background-color: var(--color-black);
}

.color--blue {
  background-color: var(--color-blue);
}

.color--cyan {
  background-color: var(--color-cyan);
}

.color--yellow {
  background-color: var(--color-yellow);
}

.background-color-dropdown-list-item:hover {
  color: var(--color-text-highlight--1);
}

@media screen and (width <= 769px) {
  .header-logo {
    width: clamp(120px, 20.8vw, 160px);
  }
}

@media screen and (width <= 600px) {
  .header-logo {
    width: 120px;
  }

  .navigation-bar {
    flex-shrink: 0;
    gap: 6px;
  }

  .background-color-dropdown-button {
    width: 44px;
    height: 44px;
    font-size: 12px;
    line-height: 12px;
  }

  .burger-button {
    width: 44px;
    height: 44px;
    padding: 14px 11px;
    gap: 4px;
  }

}

@media screen and (width <= 480px) {
  .page-header {
    padding: 20px var(--padding-page);
  }

  .page-header > .region-header {
    gap: 10px;
  }

  .header-logo {
    width: 110px;
  }

  .navigation-bar {
    gap: 4px;
  }

  .background-color-dropdown-button,
  .burger-button {
    width: 40px;
    height: 40px;
  }

  .background-color-dropdown-button {
    font-size: 11px;
    line-height: 11px;
  }

  .burger-button {
    padding: 12px 10px;
  }

  .navigation-bar p:nth-of-type(1) {
    display: none;
  }

  .background-color-dropdown p {
    display: block!important;
  }
}